arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0908.2910nucl-ex
收藏

反应γ p -> p ω的微分截面和自旋密度矩阵元

Differential cross sections and spin density matrix elements for the reaction gamma p -> p omega

M. Williams, D. Applegate, M. Bellis, C. A. Meyer

摘要:

高统计微分截面和自旋密度矩阵元素的反应γ p -> p Ω已被测量使用CLAS在杰斐逊实验室的质心(CM)的能量从阈值到2.84 GeV。结果报告在112 10兆电子伏宽CM能量箱,每个细分为cos(θ CM)箱的宽度为0.1。这些是迄今为止最精确和最广泛的欧米茄光合作用测量。一些突出的结构在数据中清晰可见。由于早期测量的统计数据有限,其中许多以前没有观察到。

英文摘要:

High-statistics differential cross sections and spin density matrix elements for the reaction gamma p -> p omega have been measured using the CLAS at Jefferson Lab for center-of-mass (CM) energies from threshold up to 2.84 GeV. Results are reported in 112 10-MeV wide CM energy bins, each subdivided into cos(theta_CM) bins of width 0.1. These are the most precise and extensive omega photoproduction measurements to date. A number of prominent structures are clearly present in the data. Many of these have not previously been observed due to limited statistics in earlier measurements.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑